| /* |
| * Copyright (c) 1987, 1993, 1994 |
| * The Regents of the University of California. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. All advertising materials mentioning features or use of this software |
| * must display the following acknowledgement: |
| * This product includes software developed by the University of |
| * California, Berkeley and its contributors. |
| * 4. Neither the name of the University nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include "misc.h" |
| |
| int opterr = 1, /* if error message should be printed */ |
| optind = 1, /* index into parent argv vector */ |
| optopt, /* character checked for validity */ |
| optreset; /* reset getopt */ |
| char *optarg; /* argument associated with option */ |
| |
| #define EMSG "" |
| |
| /* ***APRDOC******************************************************** |
| * ap_status_t ap_getopt(ap_context_t *, ap_int32_t, char *const *, |
| * const char *, ap_int32_t) |
| * Parse the command line options passed to the program. |
| * arg 1) The context to operate on. |
| * arg 2) The number of arguments passed to ap_getopt to parse |
| * arg 3) The array of command line options to parse |
| * arg 4) A string of characters that are acceptable options to the program. |
| * characters followed by ":" are required to have an option |
| * associated |
| * arg 5) The next option found. There are four potential values for |
| * this variable on exit. They are: |
| * APR_EOF -- No more options to parse |
| * APR_BADCH -- Found a bad option character |
| * APR_BADARG -- Missing parameter for the found option |
| * Other -- The next option found. |
| * NOTE: Arguments 2 and 3 are most commonly argc and argv from |
| * main(argc, argv) |
| */ |
| ap_status_t ap_getopt(struct context_t *cont, ap_int32_t nargc, |
| char *const *nargv, const char *ostr, ap_int32_t *rv) |
| { |
| char *p; |
| static char *place = EMSG; /* option letter processing */ |
| char *oli; /* option letter list index */ |
| |
| if (optreset || !*place) { /* update scanning pointer */ |
| optreset = 0; |
| if (optind >= nargc || *(place = nargv[optind]) != '-') { |
| place = EMSG; |
| *rv = optopt; |
| return (APR_EOF); |
| } |
| if (place[1] && *++place == '-') { /* found "--" */ |
| ++optind; |
| place = EMSG; |
| *rv = optopt; |
| return (APR_EOF); |
| } |
| } /* option letter okay? */ |
| if ((optopt = (int) *place++) == (int) ':' || |
| !(oli = strchr(ostr, optopt))) { |
| /* |
| * if the user didn't specify '-' as an option, |
| * assume it means -1. |
| */ |
| if (optopt == (int) '-') |
| *rv = optopt; |
| return (APR_EOF); |
| if (!*place) |
| ++optind; |
| if (opterr && *ostr != ':') { |
| if (!(p = strrchr(*nargv, '/'))) |
| p = *nargv; |
| else |
| ++p; |
| (void) fprintf(stderr, |
| "%s: illegal option -- %c\n", p, optopt); |
| } |
| *rv = optopt; |
| return APR_BADCH; |
| } |
| if (*++oli != ':') { /* don't need argument */ |
| optarg = NULL; |
| if (!*place) |
| ++optind; |
| } |
| else { /* need an argument */ |
| if (*place) /* no white space */ |
| optarg = place; |
| else if (nargc <= ++optind) { /* no arg */ |
| place = EMSG; |
| if (*ostr == ':') |
| *rv = optopt; |
| return (APR_BADARG); |
| if (opterr) { |
| if (!(p = strrchr(*nargv, '/'))) |
| p = *nargv; |
| else |
| ++p; |
| (void) fprintf(stderr, |
| "%s: option requires an argument -- %c\n", |
| p, optopt); |
| } |
| *rv = optopt; |
| return (APR_BADCH); |
| } |
| else /* white space */ |
| optarg = nargv[optind]; |
| place = EMSG; |
| ++optind; |
| } |
| *rv = optopt; |
| return APR_SUCCESS; |
| } |
| |
| |